Inventor

ARNTSEN TOM D

US2 patents

⚠️ This page may combine multiple inventors who share the name “ARNTSEN TOM D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BELL TELEPHONE LABOR INC

1 patent

US4447675AMay 8, 1984

Ring-trip detector

BELL TELEPHONE LABOR INC19 citations78

AT & T BELL LAB

1 patent

US4631362ADec 23, 1986

Low resistance origination scan circuit

AT & T BELL LAB4 citations60